[lworld] RFR: 8242402: multianewarray is missing checks on the bottom class

[Harold Seigel]

On Mon, 6 Jul 2020 20:09:59 GMT, Frederic Parain <fparain at openjdk.org> wrote:

>> src/hotspot/share/classfile/systemDictionary.cpp line 365:
>> 
>>> 364:             THROW_NULL(vmSymbols::java_lang_IncompatibleClassChangeError());
>>> 365:           }
>>> 366:       k = k->array_klass(ndims, CHECK_NULL);
>> 
>> Is it worthwhile using THROW_MSG_NULL to provide a helpful message with the exception?
>
> Something like this?
> 
> `THROW_MSG_NULL(vmSymbols::java_lang_IncompatibleClassChangeError(), "L/Q mismatch on bottom type");`
> 
> Fred

Yes. That looks good.  Thanks.

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PR: https://git.openjdk.java.net/valhalla/pull/105